Vitamin D levels in adults with non-atopic asthma: A case-control study.
Recruiting
- Conditions
- (non-atopic) asthmaVitamin D(niet-atopisch) astmavitamine D
- Registration Number
- NL-OMON20191
- Lead Sponsor
- Research fund Medical Centre Leeuwarden
- Brief Summary
/A
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Recruiting
- Sex
- Not specified
- Target Recruitment
- 216
Inclusion Criteria
Group 1:
1. Outpatients with non-atopic asthma, determined by negative alatop;
Exclusion Criteria
Group 1:
1. Patients with smoking history of > 10 packyears and persistent airflow obstruction (post bronchodilator FEV1 < 80%pred): excluded if reversibility in FEV1 < 12% predicted OR TLCO < 80%pred;
Study & Design
- Study Type
- Observational non invasive
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method 1. The difference between vitamin D levels of patients with non-atopic asthma and of patients with atopic asthma;<br /><br>2. The difference between vitamin D levels of patients with non-atopic asthma and of non-atopic healthy subjects.
- Secondary Outcome Measures
Name Time Method ot applicable at this time. <br /><br>If a difference is found between non-atopic asthmatics and controls, virus serology will be determined and compared between these groups and genetic tests can be performed and compared between these groups. <br>